WO2018146311A1

WO2018146311A1 - Bracket structure for joining building panels made of reinforced expanded plastic material and relevant manufacturing method

Info

Publication number: WO2018146311A1
Application number: PCT/EP2018/053444
Authority: WO
Inventors: Angelo Candiracci
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-02-13
Filing date: 2018-02-12
Publication date: 2018-08-16
Anticipated expiration: 2019-08-13
Also published as: IT201700015302A1

Abstract

Bracket structure (1) for joining construction panels (24) made of expanded plastic material (30), reinforced with cages (23) in twinned meshes (25, 26) of stringers (27, 28) and metal connectors (29), comprising a metal plate (1) to be embedded in the plastic material (30) alongside the reinforcement (23), centrally configured with a central portion (2) suitable to be juxtaposed on the plane with a corresponding portion (2) of a similar structure (1) and constrain it through mutual coupling means (7, 8, 9) and laterally with backward-facing mirror-like arranged symmetric wing portions (3), in such position non-elastically foldable by the deformation of the design fiat arrangement, carried out through a numerical control shaped cut, suitable to be lodged in the reinforcement (23) through perimeter elements shaped with interceptor arms (10, 11, 12, 13), inward (14, 15) and outward (16, 17) grooved receptacles, shaped profiles (18, 19, 29, 21) and possible handling grooves (22) interfunctionally designed so as to be wedged - in use - between the meshes (27, 28, 29) of the reinforcement (23) with an angular movement, causing the dynamic elastic displacement forcing of the outermost connector (29) or stringer (27, 28) and the internally adjacent one, with subsequent dropping into the grooves (14, 15, 16, 17) through the elasticity thereof and trapping therein in at least two points per wing (3) thus constraining the bracket (1) - in use - tensioned and subjected to any other stress.

Description

TITLE

BRACKET STRUCTURE FOR JOINING BUILDING PANELS MADE OF REINFORCED EXPANDED PLASTIC MATERIAL AND RELEVANT MANUFACTURING METHOD

DETAILED DESCRIPTION

State of the art

In the construction industry there are known construction panels of the "sandwich" type made of a steel wire mesh and sintered expanded plastic material formed by a sheet-like core made of sintered expanded plastic material, for example and preferably polystyrene with differentiated- density as a function of the intended construction use of the panel, caged between two electrowelded wire meshes, mutually joined by two steel wires to obtain two crosspieces perforating said core.

The single-block product thus made may be modularly arranged and plastered, held by the metal meshes to form prefabricated walls with optimal resistance, anti- seismic, heat insulation, sound-proof and fire-proof characteristics.

Furthermore, a twinned pair of panels thus made may be used - with excellent results - as a disposable formwork i.e. a container where concrete is cast between the two panels which remain incorporated therewith, englobed to collaborate with the formation of the wall, contingently plastered on the outer walls thereof just like a single panel.

Further methods of utilisation of the construction panels of the sandwich type with a steel mesh and sintered expanded plastic material provides for inserting panels into the conventional formworks for holding the concrete cast and removed upon drying, for reinforcing, lightening, insulating and sound-proofing the walls they are applied to. With the main aim of combining - for construction purposes - the characteristics of reinforced concrete and those of sintered expanded polystyrene panels associated to metal meshes, there was conceived a prefabricated construction structure made of sintered expanded polystyrene (eps), in particular a panel comprising a composite complex structure by aggregating steel to the sintered expanded polymeric mass, preferably of the high density type, by embedding steel rod-like elements thereinto, preferably pre-assembled to form electrowelded cage elements; a structure obtained by arranging steel rod-like elements, preferably pre-assembled to form a cage of electrowelded elements, in the polystyrene expansion mould, pouring - into the mould - incoherent granules or beads obtained from the polymerisation of styrene with grain size and volume suitable for obtaining a finished product of a high density, expansion and sintering i.e. incorporating incoherent polystyrene through contact with water vapour at a temperature higher man ninety degrees centigrade and the ensuing trapping of the reinforcement into the monolithic mass thus obtained to achieve a solid shape, depending on the mould, of reinforced sintered expanded polystyrene.

Objects of the invention

In this context, the main object of the present invention is to provide a structure for mutually constraining panel elements made of expanded plastic material, in particular panels made of sintered expanded polystyrene associated to metal meshes and reinforce them internally.

Another object of the present invention is to attain the preceding object through a polyvalent structure for any assembly orientation of said panel elements made of reinforced expanded plastic material.

Still another object of the present invention is to attain the preceding objects and also provide a structure that can be stably and firmly incorporated to the reinforcement and - alongside it - that can be subjected to the processing steps for producing any kind and type of said panel elements made of reinforced expanded plastic material.

A further object of the present invention is to attain the aforementioned objects through a structure that is simple and functional, safe to use and relatively inexpensive considering the actual results attained therewith.

Summary of the solution concept These and other objects are all attained through a bracket structure (1) for joining construction panels (24) made of expanded plastic material (30), reinforced with cages (23) in twinned meshes (25, 26) of stringers (27, 28) and metal connectors (29), according to the present invention, comprising a metal plate (1) to be embedded in the plastic material (30) alongside the reinforcement (23), centrally configured with a central portion (2) suitable to be juxtaposed on the plane with a corresponding portion (2) of a similar structure (1) and constrain it through mutual coupling means (7, 8, 9) and laterally with backward-facing mirror-like arranged symmetric wing portions (3), in such position non-elastically foldable by the deformation of the design flat arrangement, carried out through a numerical control shaped cut, suitable to be lodged in the reinforcement (23) through perimeter elements shaped with interceptor arms (10, 11, 12, 13), inward (14, 15) and outward (16, 17) grooved receptacles, shaped profiles (18, 19, 29, 21) and possible handling grooves (22) mterfunctionally designed so as to be wedged - in use - between the meshes (27, 28, 29) of the reinforcement (23) with an angular movement, causing the dynamic elastic displacement forcing of the outermost connector (29) or stringer (27, 28) and the internally adjacent one, with subsequent dropping into the grooves (14, 15, 16, 17) through the elasticity thereof and trapping therein in at least two points per wing (3) thus constraining the bracket (1) - in use - tensioned and subjected to any other stress.

Description of the attached drawings

Further characteristics and advantages of the bracket structure for joining construction panels especially made of reinforced expanded plastic material according to the present invention shall be more apparent from the following detailed description of a preferred but non-exclusive embodiment thereof, represented solely by way of non- limiting example with reference to the fourteen drawings attached to the present description text, wherein:

Figures 1 to 3 comprised illustrate a first embodiment of the bracket structure according to the present invention, respectively in perspective view, in the flat extension thereof and in the application thereof;

Figures 4 and 5 respectively illustrate two laying steps of a first embodiment of the bracket structure according to the present invention; Figure 6 illustrates, in the assembly thereof, a first embodiment of the bracket structure according to the present invention;

Figures 7 to 9 comprised illustrate a second embodiment of the bracket structure according to the present invention, respectively in perspective view, in the flat extension thereof and in the application thereof,

Figures 10 to 12 comprised illustrate a third embodiment of the bracket structure according to the present invention, respectively in perspective view, in the flat extension thereof and in the application thereof;

Figures 13 and 14 respectively illustrate a panel structure reinforcement and a reinforced panel structure with embodiments of the bracket structure according to the present invention applied thereon.

Static description of the preferred embodiment

With reference to such figures and in particular to figure 1, a first embodiment of the bracket structure for joining construction panels, especially reinforced expanded plastic material, according to the present invention centrally configured with a central portion 2 and laterally with symmetric wing portions 3 A, is indicated in its entirety with 1A.

In the illustrated embodiments, the central portion 2 has a substantially right- angled quadrilateral frame-like configuration defining a central window 4, comprising two juxtaposed sides S shaped at the centre with an almost semi-circular coaxial inward- bent curvature 6, suitable to house a stud 7 carrying two blocks 8 projecting into the window 4, mutually diverged upon tightening and provided with juxtaposed notches 9 suitable for engaging twice the thickness of a bracket 1.

The lateral symmetric wing portions 3 are backward-facing mirror-like and, in embodiment 1 A represented in figure 1, showing an axial bracket 1A as better outlined hereinafter, the wings 3A are perimetrically shaped with four interceptor arms, two external proximal 10A, 11A and two internal distal 12 A, 13 A respectively joined to inward proximal 14A, 15A and outward distal 16A, 17A grooved receptacles from which there are obtained curved direction profiles 18 A, 19 A, 20A, 21 A contingently connected for the purpose.

In embodiment IB represented in figure 7, showing an orthogonal bracket IB as better outlined hereinafter, the wings 3B are perimetrically shaped with two distal interceptor arms 12B, 13B, respectively joined to outward distal grooved receptacles 16B, 17B, which provide curved direction profiles 20B, 21B contingently shaped connected to a single outward proximal grooved receptacle 1SB.

In embodiment 1C represented in figure 10, showing an inner bracket 1C as better outlined hereinafter, the wings 3B are perimetrically shaped with a distal interceptor arm 12C joined to the outward distal grooved receptacles 16C, from which there is obtained a direction shape 20C, such single arm 12C being shaped connected to inward proximal grooved receptacles 14C, 15C at the root, the first of which is provided with an adjacent co-oriented groove 22 for easy angled introduction and handling.

Figure 13 shows a reinforcement 23 for the panel structure 24, consisting of twinned meshes 25 and 26, formed by orthogonal warp 27 and weft 28 metal stringers, in particular steel yarns or rods, constrained by connectors or crosspieces 29, also consisting of steel yarns or rods, electrowelded to the stringers 27 and 28 of the meshes 25 and 26.

In figure 14 the panel structure 24 is illustrated complete with the layer of expanded plastic material 30, preferably sintered expanded polystyrene (eps), for the functions illustrated below.

Dynamic description of the preferred embodiment

Thus, having completed the static description of a preferred embodiment of the bracket structure for joining panels especially made of reinforced expanded plastic material according to the present invention, following is the dynamic description of the same, i.e. the relative operation, regarding whose description it should be observed that the brackets 1 can be manufactured through moulding both in flat arrangement with wings 3 to be subsequently folded, as well as in the arrangement with the wings 3 already in operative arrangement

An innovative production system, claimed in the patent, contributes to making the bracket structure according to the present invention particularly advantageous, polyvalent and inexpensive, and it consists in producing the brackets 1 on a flat arrangement, with sheet-like wing portions 3 extended in unfinished shape, or better, not shaped, or shaped in a potential extension, from which the contingently desired shapes are shape-cut by means of numerical control systems, preferably using a laser, so as to attain - with an appropriately extended single unfinished element - any and any type of shape contingently required or suitable and any or any type of another shape with respect to the embodiments described and illustrated, in the outlined claims of the relative equivalences and/or within the solution concept subject thereof.

Thus said, in the application step, the wings 3 of the brackets 1 - through the inter-functional device of the interceptor arms 10, 11, 12, 13, of the inward 14, IS and outward 16, 17 grooved receptacles, of the curved profiles 18, 19, 29, 21 and, if necessary, handling grooves 22 - can be wedged between the meshes 27, 28, 29 of the reinforcement 23 with an angular movement (see figure 4), causing an elastic displacement forcing of the outermost connector 29 or stringer 27, 28 and/or the internally neighbouring one, with successive relative dropping - into the grooves 14, 15, 16, 17 - of their respective receptacle due to the elasticity thereof and trapping therein in at least two points, per wing 3, thus comtraining - in use - the brackets 1 tensioned and to any other stress.

The reinforcements 23 with the brackets 1 thus associated thereto are then arranged in the mould for expanding and sintering the incoherent granules or beads obtained from the polymerisation of styrene, with the ensuing trapping of the reinforcement 23 in the sintered monolithic mass 30, to attain a reinforced sintered expanded polystyrene panel 24, with brackets 1 for mutual fixing already arranged at the appropriate positions and firmly constrained to the inner reinforcement 23, which can be interfaced to the homologous brackets 1 of the other panels 24 to be assembled and mutually fixed.

As a matter of fact, on the surfaces of the panels 24, the median portion 2 of the brackets 1 projects with the central window 4 thereof, comprising the two juxtaposed sides 5, centrally shaped with the coaxial inward-bent curvature 6, suitable to house the stud 7, carrying the two blocks 8 protruding into the window 4, mutually diverging upon screwing and - through respective juxtaposed notches 9 - they notch twice the thickness of die two juxtaposed brackets 1, firmly tightening them one to the other and with their panel structures 24 to which they are inextricably fixed.

In embodiment 1A, represented in figures 1 to 6 comprised, the bracket 1A is axial, in that designated to be applied between the meshes 27, 28, 29 on the edges of the reinforcement 23, so as to be constrained to the homologous structures axiaUy to the plane of the panel 24 to which it is associated; in embodiment IB, represented in figures 7 to 9 comprised, the bracket IB is orthogonal, in that designated to be applied between the meshes 27, 28, 29 on the faces of the reinforcement 23, so as to be constrained to the homologous structures orthogonally to the plane of the panel 24 to which it is associated;

in embodiment IB represented in figures 10 to 12 comprised, the bracket IB is internal, in that designated to be applied between the internal meshes 27, 28, 29 of the reinforcement 23, with a homologous bracket IB interfaced with respect thereto also applied internally; so that the juxtaposed inner brackets IB project concealed into the polymeric mass 1 with sintering in the mould; the panel 24 thus obtained, can then be cut on the transversal plane of the panel 24 passing between the faces 2 of the pair of juxtaposed inner brackets IB, or of the plurality of juxtaposed inner brackets IB contingently fitted with mutual coplanar interface, so as to project on the edge of the finished product 24 so as to be used like the previously described axial brackets 1A. This kind of structuring can be used for obtaining small panels exploiting the mould fully.

Alternative embodiments

It is obvious that in alternative embodiments, still falling within the concept solution of the embodiment illustrated above and claimed below, the bracket structure for joining construction panels especially made of reinforced expanded plastic material according to the present invention, may also be implemented and obtained differently, through equivalent technical and mechanical solutions still falling within the scope of protection illustrated and claimed below;

In particular:

the shape of the wings may be designed in any other manner suitable for the purpose to enable the relative introduction between the meshes of the reinforcement trellis, intercepting and anchoring them, while the median face projects on the surface of the trellis, or better, of the surface of the expanded plastic material designated to embed or cover it

The median face for the mutual joining of the brackets can be designed without central arcs to house the screws for countering the tightening blocks, which may extend on the inner side of one median faces, even without cradles, housings or lodging elements whatsoever. Obviously, several brackets of any type appropriate to the functions of the panel can be applied to a single panel in several points.

Advantages of the invention

As observable from the previously outlined description of a preferred but nonexclusive embodiment, the bracket structure for joining construction panels, especially for reinforced expanded plastic material, according to the present invention, offers the advantages corresponding to the preset objects as well as other objects:

as a matter of fact, it integrates a simple, practical, modular and polyvalent solution concept suitable to supplement efficient panels and robust fixing means and mutual joining in any position right from constitution thereof, according to the relative production process, through simple interventions carried out without affecting the cycle thereof in any manner whatsoever.

KEY TO REFERENCE NUMBERS

1 A) axial bracket

IB) orthogonal bracket

IC) inner bracket

2) central portion of the bracket

3A) wings of the axial bracket

3B) wings of the orthogonal bracket

3C) wings of the inner bracket

4) window in the central portion of the bracket

5) juxtaposed sides with curved seats of the window in the central portion of the bracket

6) curved seats of the juxtaposed sides of the window in the central portion of the bracket

7) stud

8) tightening blocks

9) coupling notches of the tightening blocks

I OA) outer proximal interceptor arms of the wings of the axial bracket

10C) inner proximal interceptor arms of the wings of the inner bracket

I I A) outer proximal interceptor arms of the wings of the axial bracket

11 C) inner proximal interceptor arms of the wings of the inner bracket

12A) inner distal interceptor arms of the wings of the axial bracket

12B) distal interceptor arms of the wings of the orthogonal bracket

12C) distal interceptor arm of the wings of the inner bracket

13 A) inner distal interceptor arms of the wings of the axial bracket

13B) distal interceptor arms of the wings of the orthogonal bracket

14 A) inward proximal receptacles of the proximal arms of the wings of the axial bracket

14C) inward proximal receptacles of the proximal arms of the wings of the inner bracket

15 A) inward proximal receptacles of the proximal arms of the wings of the axial bracket

1 SB) outward proximal receptacles of the wings of the orthogonal bracket ISC) inward proximal receptacles of the proximal arms of the wings of the inner bracket

16A) outward distal receptacles of the distal arms of the wings of the axial bracket

16B) outward distal receptacles of the wings of the orthogonal bracket

16C) distal receptacle of the distal arm of the wings of the inner bracket

17 A) outward distal receptacles of the distal arms of the wings of the axial bracket 17B) outward distal receptacles of the wings of the orthogonal bracket

18 A) curved direction profiles of the proximal arms of the wings of the axial bracket 19A) curved direction profiles of the proximal arms of the wings of the axial bracket 20A) curved direction profiles of the distal arms of the wings of the axial bracket 20B) curved direction profiles of the arms of the wings of the orthogonal bracket 20C) curved direction profile of the arm of the wings of the inner bracket

21 A) curved direction profiles of the distal arms of the wings of the axial bracket

21 B) curved direction profiles of the arms of the wings of the orthogonal bracket

22) handling groove for the ease of introducing the arm of the wings of the inner bracket

23) reinforcement in its entirety

24) panel structure in its entirety

25) first twinned mesh in its entirety

26) second twinned mesh in its entirety

27) warp stringers

28) weft stringers

29) connectors or crosspieces

30) expanded plastic material

Claims

1) Bracket structure (1) for joining building panels (24) made of expanded plastic material (30), internally reinforced with cages (23) in twinned nets (25, 26) for currents (27, 28) and metal connectors (29), characterised in that it comprises a plate (1) embedded in the plastic material (30) jointly with the reinforcement (23), configured with:

a central plate (2) shaped and thickness fit to constrain and provide anchorage thickness for means (7, 8, 9) for engaging one equal plate (1) specularly interfaced;

facing backwards wing portions (3) perimeterally protruding suitable to creep in and get caught among the currents (27, 28) and connectors (29) of the twinned nets (25, 26) of the reinforcement (23) engaging to said currents (27, 28) and connectors (29) through reliefs (10, 11, 12, 13), grooves (14, 15, 16, 17) and curved edges (18, 19, 29, 21), shaped to be wedged between the meshes (27, 28, 29) of the reinforcement (23), intercept and trap them.

2) Bracket structure (1) according to claim one, characterised in that it comprises a metal plate (1) to be embedded in the plastic material (30) alongside the reinforcement (23), centrally configured with a central portion (2) suitable to be juxtaposed on the plane with a corresponding portion (2) of a similar structure (1) and constrain it through mutual coupling means (7, 8, 9) and laterally with mirror-like arranged symmetric wing portions (3), in such position inelastically foldable by the deformation of the flat design arrangement, suitable to be lodged in the reinforcement (23) through perimeter elements shaped with interceptor arms (10, 11, 12, 13), concave (14, 15) and convex (16, 17) grooved receptacles, curved edges (18, 19, 29, 21) and possible handling grooves (22) designed so as to be wedged - in use - between the meshes (27, 28, 29) of the reinforcement (23) with an angular movement, causing the dynamic elastic displacement forcing of the connector (29) or current (27, 28) arranged more externally with respect to the internally adjacent one, with subsequent dropping into the grooves (14, 15, 16, 17) through the elasticity thereof and trapping therein in at least two points per wing (3) thus constraining the bracket (1) - in use - tensioned and subjected to any other stress. 3) Bracket structure (1) according to claim one or two, characterised in that said wing portions (3 A) are symmetrically mirror-like arranged facing backwards and perimetrically shaped with four interceptor arms, two external proximal (10A, 11 A) and two internal distal (12A, 13A) respectively joined to concave proximal (14 A, ISA) and convex distal (16A, 17A) grooved receptacles from which there are obtained orientation curved edges (18A, 19 A, 20A, 21A) suitably shaped connected for the purpose.

4) Bracket structure (1) according to claim one or two, characterised in that said wing portions (3B) are symmetrically mirror-like arranged facing backwards and perimetrically shaped with distal interceptor arms (12B, 13B) respectively joined to convex distal grooved receptacles (16B, 17B) from which there are obtained orientation curved edges (20B, 21B) suitably shaped connected to a single convex proximal grooved receptacle (15B).

5) Bracket structure (1) according to claim one or two, characterised in that said wing portions (3B) are symmetrically mirror-like arranged facing backwards and perimetrically shaped with a distal interceptor arm (12C) joined to the convex proximal grooved receptacles (16C), from which there is obtained an orientation shape (20C), such single arm (12C) being shaped connected to concave distal grooved receptacles (14C, 15C) at the root, the first of which is provided with an adjacent co-oriented groove (22) for easy introduction.

6) Bracket structure (1) according to any one of the preceding claims, characterised in that said central plate (2) has a frame-like configuration defining a central window (4), comprising two juxtaposed portions (S) suitable to interact with a screw (7) carrying two blocks (8) projecting into said window (4), mutually diverged upon fastening and provided with juxtaposed teeth (9) suitable for engaging twice the thickness of a bracket (1).

7) Bracket structure (1) according to any one of the preceding claims, characterised in that said central plate (2) has a substantially right-angled frame-like configuration defining a central window (4), comprising two juxtaposed sides (S) suitable to interact with a screw (7) carrying two blocks (8) projecting into said window (4), mutually diverged upon fastening and provided with juxtaposed teeth (9) suitable for engaging twice the thickness of a bracket (1).

8) Bracket structure (1) according to any one of the preceding claims, characterised in that said central plate (2) has a substantially right-angled quadrilateral frame-like configuration defining a central window (4), comprising two juxtaposed sides (S) shaped at the centre with a semi-circular proximal coaxial concave curvature (6)suitable to accommodate a stud bolt (7) carrying two blocks (8) projecting into the window (4), mutually diverged upon fastening and provided with juxtaposed teeth (9) suitable for engaging twice the thickness of a bracket (1).

9) Method for manufacturing brackets according to any one of the preceding claims, characterised in that said wing portions (3) are inelastically folded symmetrically mirror-like arranged facing backwards by the deformation of the design flat arrangement actuated by shape cutting.

10) Method for manufacturing brackets according to the preceding claim, characterised in that said wing portions (3) are cut from panel-like portions extended with unfinished shape, shaped in potential extension, from which the contingently desired shapes are cut, cut-shaped by means of numeric control systems, preferably laser-cut, so as to attain, with a single appropriately extended unfinished piece, any type of contingently required or needed shape and any type of shape.